1Personnel Position Monitoring Technology and System in Underground MineSUN Ji-ping1-52Construction and Development of Emergency Refuge System in Underground MineYANG Da-ming6-93Study Progress on Geological and Dynamic Evaluation of Coal Bed Methane ReservoirLIU Da-meng, YAO Yan-bin, CAI Yi-dong, LI Jun-qian, ZHANG Bai-ren10-164New Technology and Development Tendency of Mine Water TreatmentHE Xu-wen, LI Fu-qin17-22,525Summary of Study on Inference Engine Applied to Mining EngineeringJI Hong-guang, ZOU Jing23-276Fully Mechanized Top Coal Caving Mining Technology for Ultra Thick Seam in Datong Mining AreaWU Yong-ping28-317Multi Dimension Active Control Techoology in Large Cross Section Seam Gateway in Kilometer Deep Mine ShaftDU Bing-shen32-368Load Determination of Powered Supports for Fully Mechanized Top Coal Caving Mining Face in Horizontal Slice of Steep Inclined Thick SeamYANG Sheng-li, ZHANG Peng, LI Fu-sheng, LIU An-qi37-409Gateway Side Backfilling Support Technology of Goaf Side Gateway in Fully Mechanized High Cutting Longwall Mining FaceBU Tie-yong, FENG Guang-ming, JIA Kai-jun41-44,9610Analysis on Deformation Failure Monitoring and Measuring of Deep Mine Soft Rock RoadwayWANG Chao, WU Yong-ping, ZHAO Zi-hao, CHEN Shi-jiang45-4711Strata Pressure Behavior Law and Powered Support Selection of Longwall Coal Mining Face of Shendong Mining AreaL(U) Meng-jiao48-5212Experiment to Improve Accuracy of Borehole Stressmeter to Monitor and Measure Coal and Rock StressYU Zheng-xing, JIANG Fu-xing, WANG Luo-feng53-55,9213Study and Practices on Improvement of Mining Up Limit Under Loose AquiferLIU Rui-xin56-5914Key Technology of Large Diameter Gas Drainage Borehole Drilling at Surface Ground of MineYANG Jian, SUN Jia-ying, YU Da-you, XIE Yan60-62,2715Technology of Goaf Side Gateway Retained with Roof Falling Rock Natural Backfilling in Inclined SeamZHOU Bao-jing, XU Jin-hai, LIANG Guo-dong, HU Zhong-guo, ZHANG Jiang-yun63-6616High Pre-Stressed Powerful Bolt Applied to Mining Gateway with Easy Weathered RoofWANG Jia-xue67-69,11117Application of Rapid Seam Opening Technology with Fissure Cutting of High Pressure Water Jetting in Yanjing No.1 MineYANG Shuang-shan, XIN Hai, LIN Chuan-bing, HE You-ming, SHEN Chun-ming, ZHANG Lian-jun70-7318Comprehensive Control Technology to Spontaneous Combustion Seam of Fully Mechanized Top Coal Caving Mining FaceLI Chun-sheng, ZHANG Dao-shu, WANG Hua-sheng74-77,8919Hydraulic Pressurized Cracking and Permeability Improvement Technology Applied to Gas DrainageSUN Bing-xing, WANG Zhao-feng, WU Hou-rong78-80,11920Experiment Study on Air Cooler Combined Temperature Cooling Mode for Coal Mining FaceCHU Zhao-xiang, XIN Song, WANG Bao-qi81-84,107 